This library comes from the gksu application.
It provides a simple API to use su and sudo in applications that need to execute tasks as an other user.
It provides X authentication facilities for running applications in an X session.
gksu is a GTK+ front end for /bin/su.
gksu supports login shells and preserving environment when acting as a su front end.
It is useful for menu items or other graphical applications that need to ask the user's password to run as another user.
